All Constants

Name Unit Description
AvogadroConstant ADim

Avogadro constant Nₐ = 6.02214076 × 10²³ mol⁻¹.
BohrMagneton ADim

Bohr magneton μB = 9.2740100657 × 10⁻²⁴ J·T⁻¹.
BohrRadius ADim

Bohr radius a₀ = 5.29177210903 × 10⁻¹¹ m.
BoltzmannConstant ADim

Boltzmann constant kB = 1.380649 × 10⁻²³ J·K⁻¹.
cA ADim

cA - centiampere: submultiple of ampere; 1 cA = 1e-02 A.
cA2 ADim

cA² - square centiampere: submultiple of square ampere; 1 cA² = 1e-04 A².
cC ADim

cC - centicoulomb: submultiple of coulomb; 1 cC = 1e-02 C.
cC2 ADim

cC² - square centicoulomb: submultiple of square coulomb; 1 cC² = 1e-04 C².
cL ADim

cL - centilitre: submultiple of litre; 1 cL = 1e-02 L.
cm ADim

cm - centimeter: submultiple of meter; 1 cm = 1e-02 m.
cm2 ADim

cm² - square centimeter: submultiple of square meter; 1 cm² = 1e-04 m².
cm3 ADim

cm³ - cubic centimeter: submultiple of cubic meter; 1 cm³ = 1e-06 m³.
cm4 ADim

cm⁴ - quartic centimeter: submultiple of quartic meter; 1 cm⁴ = 1e-08 m⁴.
cm5 ADim

cm⁵ - quintic centimeter: submultiple of quintic meter; 1 cm⁵ = 1e-10 m⁵.
cm6 ADim

cm⁶ - sextic centimeter: submultiple of sextic meter; 1 cm⁶ = 1e-12 m⁶.
ComptonWaveLength ADim

Compton wavelength λC = 2.42631023867 × 10⁻¹² m.
CoulombConstant ADim

Coulomb constant ke = 8.9875517923 × 10⁹ N·m²·C⁻².
cPl ADim

cPl - centipoiseuille: submultiple of poiseuille; 1 cPl = 1e-02 Pl.
cs ADim

cs - centisecond: submultiple of second; 1 cs = 1e-02 s.
cs2 ADim

cs² - square centisecond: submultiple of square second; 1 cs² = 1e-04 s².
cs3 ADim

cs³ - cubic centisecond: submultiple of cubic second; 1 cs³ = 1e-06 s³.
cs4 ADim

cs⁴ - quartic centisecond: submultiple of quartic second; 1 cs⁴ = 1e-08 s⁴.
cs5 ADim

cs⁵ - quintic centisecond: submultiple of quintic second; 1 cs⁵ = 1e-10 s⁵.
cs6 ADim

cs⁶ - sextic centisecond: submultiple of sextic second; 1 cs⁶ = 1e-12 s⁶.
dA ADim

dA - deciampere: submultiple of ampere; 1 dA = 1e-01 A.
dA2 ADim

dA² - square deciampere: submultiple of square ampere; 1 dA² = 1e-02 A².
daA ADim

daA - decaampere: multiple of ampere; 1 daA = 1e+01 A.
daA2 ADim

daA² - square decaampere: multiple of square ampere; 1 daA² = 1e+02 A².
daC ADim

daC - decacoulomb: multiple of coulomb; 1 daC = 1e+01 C.
daC2 ADim

daC² - square decacoulomb: multiple of square coulomb; 1 daC² = 1e+02 C².
damol ADim

damol - decamole: multiple of mole; 1 damol = 1e+01 mol.
daN ADim

daN - decanewton: multiple of newton; 1 daN = 1e+01 N.
daN2 ADim

daN² - square decanewton: multiple of square newton; 1 daN² = 1e+02 N².
dC ADim

dC - decicoulomb: submultiple of coulomb; 1 dC = 1e-01 C.
dC2 ADim

dC² - square decicoulomb: submultiple of square coulomb; 1 dC² = 1e-02 C².
DeuteronMass ADim

Deuteron mass m_d = 3.3435837768 × 10⁻²⁷ kg.
dL ADim

dL - decilitre: submultiple of litre; 1 dL = 1e-01 L.
dm ADim

dm - decimeter: submultiple of meter; 1 dm = 1e-01 m.
dm2 ADim

dm² - square decimeter: submultiple of square meter; 1 dm² = 1e-02 m².
dm3 ADim

dm³ - cubic decimeter: submultiple of cubic meter; 1 dm³ = 1e-03 m³.
dm4 ADim

dm⁴ - quartic decimeter: submultiple of quartic meter; 1 dm⁴ = 1e-04 m⁴.
dm5 ADim

dm⁵ - quintic decimeter: submultiple of quintic meter; 1 dm⁵ = 1e-05 m⁵.
dm6 ADim

dm⁶ - sextic decimeter: submultiple of sextic meter; 1 dm⁶ = 1e-06 m⁶.
ds ADim

ds - decisecond: submultiple of second; 1 ds = 1e-01 s.
ds2 ADim

ds² - square decisecond: submultiple of square second; 1 ds² = 1e-02 s².
ds3 ADim

ds³ - cubic decisecond: submultiple of cubic second; 1 ds³ = 1e-03 s³.
ds4 ADim

ds⁴ - quartic decisecond: submultiple of quartic second; 1 ds⁴ = 1e-04 s⁴.
ds5 ADim

ds⁵ - quintic decisecond: submultiple of quintic second; 1 ds⁵ = 1e-05 s⁵.
ds6 ADim

ds⁶ - sextic decisecond: submultiple of sextic second; 1 ds⁶ = 1e-06 s⁶.
ElectricPermittivity ADim

Electric permittivity of free space ε₀ = 8.8541878188 × 10⁻¹² F·m⁻¹.
ElectronCharge ADim

Elementary charge e = 1.602176634 × 10⁻¹⁹ C.
ElectronMass ADim

Electron rest mass m_e = 9.1093837015 × 10⁻³¹ kg.
FineStructureConstant ADim

Fine-structure constant α = 7.2973525643 × 10⁻³ (dimensionless).
GeV ADim

GeV - gigaelectronvolt: multiple of electronvolt; 1 GeV = 1e+09 eV.
GHz ADim

GHz - gigahertz: multiple of hertz; 1 GHz = 1e+09 Hz.
GHz2 ADim

GHz² - square gigahertz: multiple of square hertz; 1 GHz² = 1e+18 Hz².
gigatonne ADim

gigatonne - gigatonne: multiple of tonne; 1 gigatonne = 1e+09 t.
GJ ADim

GJ - gigajoule: multiple of joule; 1 GJ = 1e+09 J.
GJ2 ADim

GJ² - square gigajoule: multiple of square joule; 1 GJ² = 1e+18 J².
GN ADim

GN - giganewton: multiple of newton; 1 GN = 1e+09 N.
GN2 ADim

GN² - square giganewton: multiple of square newton; 1 GN² = 1e+18 N².
Gohm ADim

Gohm - gigaohm: multiple of ohm; 1 Gohm = 1e+09 Ω.
GPa ADim

GPa - gigapascal: multiple of pascal; 1 GPa = 1e+09 Pa.
GW ADim

GW - gigawatt: multiple of watt; 1 GW = 1e+09 W.
hA ADim

hA - hectoampere: multiple of ampere; 1 hA = 1e+02 A.
hA2 ADim

hA² - square hectoampere: multiple of square ampere; 1 hA² = 1e+04 A².
hC ADim

hC - hectocoulomb: multiple of coulomb; 1 hC = 1e+02 C.
hC2 ADim

hC² - square hectocoulomb: multiple of square coulomb; 1 hC² = 1e+04 C².
hmol ADim

hmol - hectomole: multiple of mole; 1 hmol = 1e+02 mol.
hN ADim

hN - hectonewton: multiple of newton; 1 hN = 1e+02 N.
hN2 ADim

hN² - square hectonewton: multiple of square newton; 1 hN² = 1e+04 N².
InverseFineStructureConstant ADim

Inverse fine-structure constant α⁻¹ = 137.035999177 (dimensionless).
kA ADim

kA - kiloampere: multiple of ampere; 1 kA = 1e+03 A.
kA2 ADim

kA² - square kiloampere: multiple of square ampere; 1 kA² = 1e+06 A².
kbar ADim

kbar - kilobar: multiple of bar; 1 kbar = 1e+03 bar.
kBq ADim

kBq - kilobequerel: multiple of bequerel; 1 kBq = 1e+03 Bq.
kC ADim

kC - kilocoulomb: multiple of coulomb; 1 kC = 1e+03 C.
kC2 ADim

kC² - square kilocoulomb: multiple of square coulomb; 1 kC² = 1e+06 C².
kcal ADim

kcal - kilocalorie: multiple of calorie; 1 kcal = 1e+03 cal.
keV ADim

keV - kiloelectronvolt: multiple of electronvolt; 1 keV = 1e+03 eV.
kGy ADim

kGy - kilogray: multiple of gray; 1 kGy = 1e+03 Gy.
kHz ADim

kHz - kilohertz: multiple of hertz; 1 kHz = 1e+03 Hz.
kHz2 ADim

kHz² - square kilohertz: multiple of square hertz; 1 kHz² = 1e+06 Hz².
kilotonne ADim

kilotonne - kilotonne: multiple of tonne; 1 kilotonne = 1e+03 t.
kJ ADim

kJ - kilojoule: multiple of joule; 1 kJ = 1e+03 J.
kJ2 ADim

kJ² - square kilojoule: multiple of square joule; 1 kJ² = 1e+06 J².
km ADim

km - kilometer: multiple of meter; 1 km = 1e+03 m.
km2 ADim

km² - square kilometer: multiple of square meter; 1 km² = 1e+06 m².
km3 ADim

km³ - cubic kilometer: multiple of cubic meter; 1 km³ = 1e+09 m³.
km4 ADim

km⁴ - quartic kilometer: multiple of quartic meter; 1 km⁴ = 1e+12 m⁴.
km5 ADim

km⁵ - quintic kilometer: multiple of quintic meter; 1 km⁵ = 1e+15 m⁵.
km6 ADim

km⁶ - sextic kilometer: multiple of sextic meter; 1 km⁶ = 1e+18 m⁶.
kmol ADim

kmol - kilomole: multiple of mole; 1 kmol = 1e+03 mol.
kN ADim

kN - kilonewton: multiple of newton; 1 kN = 1e+03 N.
kN2 ADim

kN² - square kilonewton: multiple of square newton; 1 kN² = 1e+06 N².
kohm ADim

kohm - kiloohm: multiple of ohm; 1 kohm = 1e+03 Ω.
kPa ADim

kPa - kilopascal: multiple of pascal; 1 kPa = 1e+03 Pa.
kpsi ADim

kpsi - kilopound per square inch: multiple of pound per square inch; 1 kpsi = 1e+03 psi.
kSv ADim

kSv - kilosievert: multiple of sievert; 1 kSv = 1e+03 Sv.
kV ADim

kV - kilovolt: multiple of volt; 1 kV = 1e+03 V.
kV2 ADim

kV² - square kilovolt: multiple of square volt; 1 kV² = 1e+06 V².
kW ADim

kW - kilowatt: multiple of watt; 1 kW = 1e+03 W.
mA ADim

mA - milliampere: submultiple of ampere; 1 mA = 1e-03 A.
mA2 ADim

mA² - square milliampere: submultiple of square ampere; 1 mA² = 1e-06 A².
MagneticPermeability ADim

Magnetic permeability of free space μ₀ = 1.25663706212 × 10⁻⁶ H·m⁻¹.
mbar ADim

mbar - millibar: submultiple of bar; 1 mbar = 1e-03 bar.
mBq ADim

mBq - millibequerel: submultiple of bequerel; 1 mBq = 1e-03 Bq.
mC ADim

mC - millicoulomb: submultiple of coulomb; 1 mC = 1e-03 C.
mC2 ADim

mC² - square millicoulomb: submultiple of square coulomb; 1 mC² = 1e-06 C².
Mcal ADim

Mcal - megacalorie: multiple of calorie; 1 Mcal = 1e+06 cal.
megaohm ADim

megaohm - megaohm: multiple of ohm; 1 megaohm = 1e+06 Ω.
megaparsec ADim

megaparsec - megaparsec: multiple of parsec; 1 megaparsec = 1e+06 pc.
megatonne ADim

megatonne - megatonne: multiple of tonne; 1 megatonne = 1e+06 t.
MeV ADim

MeV - megaelectronvolt: multiple of electronvolt; 1 MeV = 1e+06 eV.
mF ADim

mF - millifarad: submultiple of farad; 1 mF = 1e-03 F.
mGy ADim

mGy - milligray: submultiple of gray; 1 mGy = 1e-03 Gy.
mH ADim

mH - millihenry: submultiple of henry; 1 mH = 1e-03 H.
MHz ADim

MHz - megahertz: multiple of hertz; 1 MHz = 1e+06 Hz.
MHz2 ADim

MHz² - square megahertz: multiple of square hertz; 1 MHz² = 1e+12 Hz².
miA ADim

miA - microampere: submultiple of ampere; 1 miA = 1e-06 A.
miA2 ADim

miA² - square microampere: submultiple of square ampere; 1 miA² = 1e-12 A².
miBq ADim

miBq - microbequerel: submultiple of bequerel; 1 miBq = 1e-06 Bq.
miC ADim

miC - microcoulomb: submultiple of coulomb; 1 miC = 1e-06 C.
miC2 ADim

miC² - square microcoulomb: submultiple of square coulomb; 1 miC² = 1e-12 C².
microsiemens ADim

microsiemens - microsiemens: submultiple of siemens; 1 microsiemens = 1e-06 S.
miF ADim

miF - microfarad: submultiple of farad; 1 miF = 1e-06 F.
miGy ADim

miGy - microgray: submultiple of gray; 1 miGy = 1e-06 Gy.
miH ADim

miH - microhenry: submultiple of henry; 1 miH = 1e-06 H.
millisiemens ADim

millisiemens - millisiemens: submultiple of siemens; 1 millisiemens = 1e-03 S.
milliW ADim

milliW - milliwatt: submultiple of watt; 1 milliW = 1e-03 W.
mim ADim

mim - micrometer: submultiple of meter; 1 mim = 1e-06 m.
mim2 ADim

mim² - square micrometer: submultiple of square meter; 1 mim² = 1e-12 m².
mim3 ADim

mim³ - cubic micrometer: submultiple of cubic meter; 1 mim³ = 1e-18 m³.
mim4 ADim

mim⁴ - quartic micrometer: submultiple of quartic meter; 1 mim⁴ = 1e-24 m⁴.
mim5 ADim

mim⁵ - quintic micrometer: submultiple of quintic meter; 1 mim⁵ = 1e-30 m⁵.
mim6 ADim

mim⁶ - sextic micrometer: submultiple of sextic meter; 1 mim⁶ = 1e-36 m⁶.
miohm ADim

miohm - microohm: submultiple of ohm; 1 miohm = 1e-06 Ω.
miPl ADim

miPl - micropoiseuille: submultiple of poiseuille; 1 miPl = 1e-06 Pl.
mis ADim

mis - microsecond: submultiple of second; 1 mis = 1e-06 s.
mis2 ADim

mis² - square microsecond: submultiple of square second; 1 mis² = 1e-12 s².
mis3 ADim

mis³ - cubic microsecond: submultiple of cubic second; 1 mis³ = 1e-18 s³.
mis4 ADim

mis⁴ - quartic microsecond: submultiple of quartic second; 1 mis⁴ = 1e-24 s⁴.
mis5 ADim

mis⁵ - quintic microsecond: submultiple of quintic second; 1 mis⁵ = 1e-30 s⁵.
mis6 ADim

mis⁶ - sextic microsecond: submultiple of sextic second; 1 mis⁶ = 1e-36 s⁶.
miSv ADim

miSv - microsievert: submultiple of sievert; 1 miSv = 1e-06 Sv.
miT ADim

miT - microtesla: submultiple of tesla; 1 miT = 1e-06 T.
MJ ADim

MJ - megajoule: multiple of joule; 1 MJ = 1e+06 J.
MJ2 ADim

MJ² - square megajoule: multiple of square joule; 1 MJ² = 1e+12 J².
mL ADim

mL - millilitre: submultiple of litre; 1 mL = 1e-03 L.
Mly ADim

Mly - megalight year: multiple of light year; 1 Mly = 1e+06 ly.
mm ADim

mm - millimeter: submultiple of meter; 1 mm = 1e-03 m.
mm2 ADim

mm² - square millimeter: submultiple of square meter; 1 mm² = 1e-06 m².
mm3 ADim

mm³ - cubic millimeter: submultiple of cubic meter; 1 mm³ = 1e-09 m³.
mm4 ADim

mm⁴ - quartic millimeter: submultiple of quartic meter; 1 mm⁴ = 1e-12 m⁴.
mm5 ADim

mm⁵ - quintic millimeter: submultiple of quintic meter; 1 mm⁵ = 1e-15 m⁵.
mm6 ADim

mm⁶ - sextic millimeter: submultiple of sextic meter; 1 mm⁶ = 1e-18 m⁶.
MN ADim

MN - meganewton: multiple of newton; 1 MN = 1e+06 N.
MN2 ADim

MN² - square meganewton: multiple of square newton; 1 MN² = 1e+12 N².
mohm ADim

mohm - milliohm: submultiple of ohm; 1 mohm = 1e-03 Ω.
MolarGasConstant ADim

Molar gas constant R = 8.314462618 J·mol⁻¹·K⁻¹.
MPa ADim

MPa - megapascal: multiple of pascal; 1 MPa = 1e+06 Pa.
mPl ADim

mPl - millipoiseuille: submultiple of poiseuille; 1 mPl = 1e-03 Pl.
ms ADim

ms - millisecond: submultiple of second; 1 ms = 1e-03 s.
ms2 ADim

ms² - square millisecond: submultiple of square second; 1 ms² = 1e-06 s².
ms3 ADim

ms³ - cubic millisecond: submultiple of cubic second; 1 ms³ = 1e-09 s³.
ms4 ADim

ms⁴ - quartic millisecond: submultiple of quartic second; 1 ms⁴ = 1e-12 s⁴.
ms5 ADim

ms⁵ - quintic millisecond: submultiple of quintic second; 1 ms⁵ = 1e-15 s⁵.
ms6 ADim

ms⁶ - sextic millisecond: submultiple of sextic second; 1 ms⁶ = 1e-18 s⁶.
mSv ADim

mSv - millisievert: submultiple of sievert; 1 mSv = 1e-03 Sv.
mT ADim

mT - millitesla: submultiple of tesla; 1 mT = 1e-03 T.
mV ADim

mV - millivolt: submultiple of volt; 1 mV = 1e-03 V.
mV2 ADim

mV² - square millivolt: submultiple of square volt; 1 mV² = 1e-06 V².
MW ADim

MW - megawatt: multiple of watt; 1 MW = 1e+06 W.
nA ADim

nA - nanoampere: submultiple of ampere; 1 nA = 1e-09 A.
nA2 ADim

nA² - square nanoampere: submultiple of square ampere; 1 nA² = 1e-18 A².
nanosiemens ADim

nanosiemens - nanosiemens: submultiple of siemens; 1 nanosiemens = 1e-09 S.
nBq ADim

nBq - nanobequerel: submultiple of bequerel; 1 nBq = 1e-09 Bq.
nC ADim

nC - nanocoulomb: submultiple of coulomb; 1 nC = 1e-09 C.
nC2 ADim

nC² - square nanocoulomb: submultiple of square coulomb; 1 nC² = 1e-18 C².
NeutronRestMass ADim

Neutron rest mass m_n = 1.67492750056 × 10⁻²⁷ kg.
NewtonianConstantOfGravitation ADim

Newtonian constant of gravitation G = 6.67430 × 10⁻¹¹ m³·kg⁻¹·s⁻².
nF ADim

nF - nanofarad: submultiple of farad; 1 nF = 1e-09 F.
nGy ADim

nGy - nanogray: submultiple of gray; 1 nGy = 1e-09 Gy.
nH ADim

nH - nanohenry: submultiple of henry; 1 nH = 1e-09 H.
nm ADim

nm - nanometer: submultiple of meter; 1 nm = 1e-09 m.
nm2 ADim

nm² - square nanometer: submultiple of square meter; 1 nm² = 1e-18 m².
nm3 ADim

nm³ - cubic nanometer: submultiple of cubic meter; 1 nm³ = 1e-27 m³.
nm4 ADim

nm⁴ - quartic nanometer: submultiple of quartic meter; 1 nm⁴ = 1e-36 m⁴.
nm5 ADim

nm⁵ - quintic nanometer: submultiple of quintic meter; 1 nm⁵ = 1e-45 m⁵.
nm6 ADim

nm⁶ - sextic nanometer: submultiple of sextic meter; 1 nm⁶ = 1e-54 m⁶.
nohm ADim

nohm - nanoohm: submultiple of ohm; 1 nohm = 1e-09 Ω.
ns ADim

ns - nanosecond: submultiple of second; 1 ns = 1e-09 s.
ns2 ADim

ns² - square nanosecond: submultiple of square second; 1 ns² = 1e-18 s².
ns3 ADim

ns³ - cubic nanosecond: submultiple of cubic second; 1 ns³ = 1e-27 s³.
ns4 ADim

ns⁴ - quartic nanosecond: submultiple of quartic second; 1 ns⁴ = 1e-36 s⁴.
ns5 ADim

ns⁵ - quintic nanosecond: submultiple of quintic second; 1 ns⁵ = 1e-45 s⁵.
ns6 ADim

ns⁶ - sextic nanosecond: submultiple of sextic second; 1 ns⁶ = 1e-54 s⁶.
nSv ADim

nSv - nanosievert: submultiple of sievert; 1 nSv = 1e-09 Sv.
nT ADim

nT - nanotesla: submultiple of tesla; 1 nT = 1e-09 T.
pBq ADim

pBq - picobequerel: submultiple of bequerel; 1 pBq = 1e-12 Bq.
pC ADim

pC - picocoulomb: submultiple of coulomb; 1 pC = 1e-12 C.
pC2 ADim

pC² - square picocoulomb: submultiple of square coulomb; 1 pC² = 1e-24 C².
pF ADim

pF - picofarad: submultiple of farad; 1 pF = 1e-12 F.
picoA ADim

picoA - picoampere: submultiple of ampere; 1 picoA = 1e-12 A.
picoA2 ADim

picoA² - square picoampere: submultiple of square ampere; 1 picoA² = 1e-24 A².
PlanckConstant ADim

Planck constant h = 6.62607015 × 10⁻³⁴ J·s.
pm ADim

pm - picometer: submultiple of meter; 1 pm = 1e-12 m.
pm2 ADim

pm² - square picometer: submultiple of square meter; 1 pm² = 1e-24 m².
pm3 ADim

pm³ - cubic picometer: submultiple of cubic meter; 1 pm³ = 1e-36 m³.
pm4 ADim

pm⁴ - quartic picometer: submultiple of quartic meter; 1 pm⁴ = 1e-48 m⁴.
pm5 ADim

pm⁵ - quintic picometer: submultiple of quintic meter; 1 pm⁵ = 1e-60 m⁵.
pm6 ADim

pm⁶ - sextic picometer: submultiple of sextic meter; 1 pm⁶ = 1e-72 m⁶.
ProtonRestMass ADim

Proton rest mass m_p = 1.67262192595 × 10⁻²⁷ kg.
ps ADim

ps - picosecond: submultiple of second; 1 ps = 1e-12 s.
ps2 ADim

ps² - square picosecond: submultiple of square second; 1 ps² = 1e-24 s².
ps3 ADim

ps³ - cubic picosecond: submultiple of cubic second; 1 ps³ = 1e-36 s³.
ps4 ADim

ps⁴ - quartic picosecond: submultiple of quartic second; 1 ps⁴ = 1e-48 s⁴.
ps5 ADim

ps⁵ - quintic picosecond: submultiple of quintic second; 1 ps⁵ = 1e-60 s⁵.
ps6 ADim

ps⁶ - sextic picosecond: submultiple of sextic second; 1 ps⁶ = 1e-72 s⁶.
ReducedPlanckConstant ADim

Reduced Planck constant ℏ = h / (2π) = 1.054571817 × 10⁻³⁴ J·s.
RydbergConstant ADim

Rydberg constant R∞ = 10973731.568157 m⁻¹.
SoundIntensityReference ADim

Reference sound intensity I₀ = 10⁻¹² W·m⁻².
SpeedOfLight ADim

Speed of light in vacuum c = 299792458 m·s⁻¹.
SquaredSpeedOfLight ADim

Squared speed of light in vacuum c² = 8.98755178736818 × 10¹⁶ m²·s⁻².
StandardAccelerationOfGravity ADim

Standard acceleration of gravity g = 9.80665 m·s⁻².
TeV ADim

TeV - teraelectronvolt: multiple of electronvolt; 1 TeV = 1e+12 eV.
THz ADim

THz - terahertz: multiple of hertz; 1 THz = 1e+12 Hz.
THz2 ADim

THz² - square terahertz: multiple of square hertz; 1 THz² = 1e+24 Hz².
TJ ADim

TJ - terajoule: multiple of joule; 1 TJ = 1e+12 J.
TJ2 ADim

TJ² - square terajoule: multiple of square joule; 1 TJ² = 1e+24 J².
TPa ADim

TPa - terapascal: multiple of pascal; 1 TPa = 1e+12 Pa.
TW ADim

TW - terawatt: multiple of watt; 1 TW = 1e+12 W.
UnifiedAtomicMassUnit ADim

Unified atomic mass unit u = 1.66053906892 × 10⁻²⁷ kg.
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